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(No Mode.)

G. W. KEYSER.J

ROLLER SKATE.'

Patented Aug. 5, 1884.

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N FUCHS. Fimo-mmm". washington D. C.

UNITED STATES PATENT OFFICE.

GEORGE Vv. KEYSER, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ON E-HALF TO 'BENJAMIN C. VRIGHT.

lROLLER-SKATE.

SPECIFICATION forminggnart of'Letters Patent No. 303,167, dated August 5, 1884.

Application led March 19, 1884.

To all whom may concern:

Beit known that l, GEORGE W. KEYsnR, a resident of Indianapolis, Marion county, Indiana, have made certain neur and useful Ini- 5 provenients in Roller-Skates, a description of which is set forth in the following specifica tion, reference being made to the accompanying drawings, in the several gures of which like letters indicate like parts.

My invention relates to the construction of casters for what are known as rollenskates, and will be understood from the following description. l l

In the drawings, Figure 1 is a side view of 15 my device, the left front wheel being removed.

Fig. 2 is a front end view of the forward caster, one of the rollers being in vertical section to show the. boxings. Fig. 3 is a front end view of the rear caster; and Fig. 4 is a top 2o view of the bar 4, with cross-sections of the end bars, 1 and 2.

In detail, f is the foot-piece'of the skate for the wheels or rollers of the casters revolving' on shaft s. These rollers have metal boxings 25 Z1', which are bored out conically on each side,

- 3o in place; and p are pins passing through nuts and shaft for greater security. l

g/ is a yoke, Whose arms at their ends are made cone-shaped to fit into the inner wheelboxings, the shaft s passing through these 35 arms, as shown in Fig. 2. r is a rubber` core or spring tted in the frame-work of the caster. This frame-work or its front l, its rear 2, and its upper piece, 3, are all cast in one piece, while the bottoni piece, 4, is a bar 4o made in the shape shown in Fig. 4, its front end being journaled into piece l, and its rear formed into a head, with an opening to receive the adjusting-screw s', the head, back of the screw-hole, being shouldered to fit into an 4.5 opening formed in rear piece, 2, this whole frame-work being inclined relative to the shafts, as showninFig. l. By relnovingserew s the bar 4 may be readily withdrawn when desired. This bar 4 passes loosely through 5o an opening in yoke y, before it reaches plate l, and. allows a lateral rotating movement of the Whole caster on it as an axis. The plate 2 is' (No model.)

l slotted, as shown in Fig. 3, to allow an upward movement to bar 4, when the adj ust-i ug screwis tightened. This slot also allovs the movement of bar 4 on the screw when any compression of the rubber is caused bythe wheels passing over uneven floors. It is thus automatic in relation to this adjustment, and

as on a floor.

Vha-t I claim, and desire to secure by Letters Patent, is the following:

l. The caster-frame, inclined to the wood et the skate, composed of the integral end pieces, 1 and 2. and top piece, 3, and the bar 4, the yoke-piece @,tlie screw s', the rubber i, and the `wheels and axis of a caster, all combined substantially as described.

2. The adjustable roller-bar 4, having bearing at one end in front plate of' the casterframe, and a support for the otherend in the rear plate of the caster-frame, the screw for adjusting the saine, t-he rubber r, and casterfraine, all combined substantially as described.

3. The combination of the yoke y, the axle s, passing its forked lower ends, the wheelszr, connected on the axle s, the rocker-bar 4, and a caster-frame for supporting such bar, attached to the foot-plate of a skate at an angle, .all combined substantially as described.

4. The shaft s, with Wheels 'w and yoke y mounted thereon, between the wheels, a caster-frame secured tothe foot-plate of a skate at an angle, as shown, and adapted to inelose a rubber cushion, r, the roller-truck secured to the easter-frame by means of a roeker-bar passing through the upper end of the yoke, and adjustable by means of a set-screw, so as 11o-increase or diminish the pressure upon the rubber cushion. substantially as described.

5. A roller-skate wherein the truck-wheels are secured to the frame by means of a yoke pressing against arubber block seated in the frame-work and a bar passing through the yoke, the other end ot' the bar adjustable in a slot in the caster-frame by means of a setscrew, substantially as described.

fitness lny hand this 14th day of March, 1884. Y

GEORGE IV. KEYSER.

W'itnesses:

C. l?. JACOBS, BENJ. C. WRIGHT.

the skate can be used on the sidewalk as well f 

